WO2022206906A1 - 旁链路资源推荐的方法、装置、设备及可读存储介质 - Google Patents

旁链路资源推荐的方法、装置、设备及可读存储介质 Download PDF

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Publication number
WO2022206906A1
WO2022206906A1 PCT/CN2022/084510 CN2022084510W WO2022206906A1 WO 2022206906 A1 WO2022206906 A1 WO 2022206906A1 CN 2022084510 W CN2022084510 W CN 2022084510W WO 2022206906 A1 WO2022206906 A1 WO 2022206906A1
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Prior art keywords
resource
terminal
information
selection
transmission
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English (en)
French (fr)
Inventor
王欢
纪子超
刘是枭
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Publication of WO2022206906A1 publication Critical patent/WO2022206906A1/zh
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/25Control channels or signalling for resource management between terminals via a wireless link, e.g. sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/40Resource management for direct mode communication, e.g. D2D or sidelink
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0096Indication of changes in allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/51Allocation or scheduling criteria for wireless resources based on terminal or device properties
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria

Definitions

  • the present disclosure belongs to the field of communication technologies, and in particular relates to a processing method, a terminal, and a network side device for a PDCCH monitoring capability.
  • New Radio (NR) side link (or called secondary link, side link or side link) (Sidelink, SL)
  • NR New Radio
  • Sidelink, SL There are two resource allocation methods, one is based on base station scheduling (mode 1), and the other is based on base station scheduling (mode 1).
  • UE User Equipment
  • the sidelink resources used by the UE for data transmission are determined by the base station, and are notified to the receiving (receive, RX) UE through downlink signaling; for the resource allocation method independently selected by the UE, the UE is in the (pre) configured
  • the available transmission resources are selected from the resource pool, the UE performs channel monitoring before resource selection, selects a resource set with less interference according to the channel monitoring result, and then randomly selects resources for transmission from the resource set.
  • the relevant resource selection method only considers the UE's autonomous resource selection, the reliability and timeliness of transmission are affected.
  • Embodiments of the present disclosure provide a method, apparatus, device, and readable storage medium for recommending sidelink resources, which can solve the problem of how to improve the reliability and timeliness of transmission.
  • a method for recommending sidelink resources including:
  • the first terminal performs a first operation, where the first operation includes one or more of the following:
  • the second information including information of the first resource
  • the transmission resource includes: a first resource and/or a second resource, the first resource is a resource recommended by the second terminal, and the second resource is a resource independently selected by the first terminal .
  • an apparatus for recommending sidelink resources applied to a first terminal, including:
  • An execution module configured to execute a first operation, where the first operation includes one or more of the following:
  • the second information including information of the first resource
  • the transmission resource includes: a first resource and/or a second resource, the first resource is a resource recommended by the second terminal, and the second resource is a resource independently selected by the first terminal .
  • a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor as described in the first aspect steps of the method described.
  • a terminal including a processor and a communication interface, wherein the processor is configured to implement the steps of the method according to the first aspect when executed.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method according to the first aspect are implemented.
  • a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the processing according to the first aspect steps of the method.
  • a chip in a seventh aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the processing according to the first aspect Methods.
  • a communication device configured to perform the method of processing as described in the first aspect.
  • the timeliness of resource recommendation is improved through the first information and/or the second information, and the combination of recommended resources and autonomously selected resources can improve transmission reliability, timeliness, and transmission efficiency.
  • FIG. 1 is a structural diagram of a wireless communication system to which an embodiment of the present disclosure can be applied;
  • FIG. 2 is a flowchart of a method for recommending sidelink resources provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of an apparatus for recommending sidelink resources provided by an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a terminal in an embodiment of the present disclosure.
  • NR SL resources There are two ways to allocate NR SL resources, one is based on base station scheduling (mode 1 (mode 1)), and the other is based on terminal (such as user equipment (User Equipment, UE)) autonomous resource selection (mode 2 (mode 2)) .
  • mode 1 base station scheduling
  • UE User Equipment
  • mode 2 mode 2
  • the RX UE After the resource selection is triggered, the RX UE first determines the resource selection window.
  • the lower boundary of the resource selection window is at T1 time after the resource selection is triggered, and the upper boundary of the resource selection is at the T2 time after the trigger, where T1 is realized by the UE.
  • the mode is selected within a range of [T1_min, T1_max], T2 is the value selected by the UE implementation mode in the packet delay budget (PDB) transmitted in its transport block (Transport Block, TB), T2 is not earlier than T1.
  • PDB packet delay budget
  • the packet delay budget (PDB) transmitted in this paper may also refer to the remaining transmitted packet delay budget (remaining packet delay budget, remaining PDB).
  • the UE Before resource selection, the UE needs to determine the candidate resource set for resource selection, in which the number of candidate resources (for example, sub-channels) is controlled by the media access control (Media Access Control).
  • Control, MAC) layer determines, UE according to the estimated reference signal received power (Reference Signal Receiving Power, RSRP) measurement value on the resource in the resource selection window (for example, by monitoring the physical side link control channel (physical sidelink control channel, PSCCH) ) / physical sidelink shared channel (physical sidelink shared channel, PSSCH) estimate) and the corresponding RSRP threshold (threshold) to compare, if the RSRP is higher than the RSRP threshold, then the resource is excluded from the resource, can not be included in the alternative resources gather.
  • RSRP Reference Signal Receiving Power
  • the remaining resources in the resource selection window after the resource exclusion is performed constitute the candidate resource set.
  • the resources in the candidate resource set should account for not less than x% of the resources in the resource selection window. If it is less than x%, the RSRP threshold needs to be increased according to the step value (3dB), and then the resource exclusion operation is performed. , until no less than said x% of resources can be selected.
  • the RSRP comparison is related to the priority of the TB to be transmitted and the priority value demodulated on the PSCCH, and the specific process is not repeated.
  • the UE After the candidate resource set is determined, the UE randomly selects transmission resources in the candidate resource set, and the number of the selected resources is determined according to the decision of the MAC layer.
  • the steps 1) and 2) are performed at the physical layer, and the step 3) is performed at a higher layer (MAC layer).
  • the UE may reserve transmission resources for the next transmission during the current transmission.
  • the TX UE will perform resource reservation/indication for its allocated resources (reservation is divided into periodic reservation and aperiodic reservation), and the reserved resources are used for future PSCCH/PSSCH transmission.
  • Aperiodic reservation/indication can be implemented through the Time domain resource assignment (Time domain resource assignment) field in the Sidelink Control Information (SCI) (at least indicate 1 to 32 time slots (slot) resources),
  • SCI Sidelink Control Information
  • the reserved resources can at least be used for the transmission of the same TB.
  • Periodic reservation/indication can be implemented through the resource reservation period (Resource reservation period) field in the SCI, and the periodic resources reserved in the current period can be used for the transmission of the next TB.
  • resource reservation period Resource reservation period
  • a certain frequency domain resource appears periodically, which may be referred to as a periodic resource of the resource.
  • the resource pre-emption mechanism is supported, and a brief description of the mechanism is as follows.
  • Said traffic priority and said SL-RSRP threshold are determined by TB transmission on said resource.
  • Mode 2 resource allocation mode a resource re-evaluation mechanism is supported, which is briefly described below. At least for the resources that the UE has selected but not reserved (other forms of resources are not excluded, because the space will not go into details), if the resources overlap (partially overlap) with the resources reserved/selected by other UEs, if the UE is in the relevant resources When the SL-RSRP measurement value on the UE is greater than a certain associated SL-RSRP threshold, the UE will trigger resource reselection.
  • Terminal A decides a resource set, and UE-A notifies the resource set to terminal B (UE-B, UE-B).
  • the resource set notified by UE-A can be considered in the mode 2 resource selection.
  • SL transmission/reception will collide with uplink (Uplink, UL) transmission.
  • uplink Uplink, UL
  • the lower priority party SL/UL
  • the standard defines priority determination rules, and the final SL transmission/reception and UL transmission are determined according to the SL priority index (priority index) and/or UL priority index. priority.
  • the RX UE recommends resources to the transmitting (transport, TX) UE, and the TX UE uses the recommended resources for transmission; or, the UE responsible for coordination (coordination UE, Co-UE ) recommend resources to the TX UE
  • the TX UE utilizes the recommended resources for transmission.
  • the Co-UE can also be used as an RX UE, or the RX UE can be used as a Co-UE.
  • the notification of recommended resources still requires additional transmission resources, which may be independent of the transmission resources of the TB, and the related resource selection method only considers the selection of the transmission resources of the TB.
  • first, second, and the like in the description and claims of the present disclosure are used to distinguish between similar objects, and are not used to describe an assigned order or precedence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present disclosure can be practiced in sequences other than those illustrated or described herein, and that "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • NR New Radio
  • the wireless communication system includes a terminal 11 and a network side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), PDA, netbook, ultra-mobile personal computer (UMPC), mobile Internet Device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device ( VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present disclosure does not limit the specific type of the terminal 11 .
  • the network side device 12 may be a base station or a core network, where the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service set (BasicServiceSet, BSS), Extended Service Set (ExtendedServiceSet, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Transmitting Receiving Point Point, TRP), radio access network node, or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to the specified technical vocabulary. It should be noted that in the embodiments of the present disclosure, only Take the base station in the NR system as an example, but the specific type of the base station is not limited.
  • a method, apparatus, device, and readable storage medium for recommending sidelink resources provided by the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.
  • the execution body of the method may be a first terminal, and the specific steps include: Step 201 .
  • Step 201 The first terminal performs a first operation, where the first operation includes one or more of the following:
  • the above-mentioned first terminal may also be referred to as a TX UE, and the second terminal may be referred to as a Co-UE.
  • the above-mentioned first information can also be called trigger signaling, optionally, the form of the first information can be side link control information (Sidelink Control Information, SCI), medium access control element (Medium Access Control Element, MAC CE) Or radio resource control (Radio Resource Control, RRC) signaling, etc.
  • SCI Sidelink Control Information
  • MAC CE Medium Access Control Element
  • RRC Radio Resource Control
  • the above-mentioned first resource may also be referred to as a recommended resource.
  • the above-mentioned second information may also be referred to as resource recommendation signaling.
  • the transmission resource includes: a first resource and/or a second resource, the first resource is a resource recommended by the second terminal, and the second resource is an autonomous resource of the first terminal selected resource.
  • the above-mentioned second resource may also be referred to as an autonomously selected resource.
  • the first information is information carried by a first channel
  • the first channel includes: a physical sidelink control channel (Physical Sidelink Control CHannel, PSCCH) or a physical sidelink shared channel Channel (Physical Sidelink Shared Channel, PSSCH). That is, the PSCCH or the PSSCH is used to carry the first information.
  • PSCCH Physical Sidelink Control CHannel
  • PSSCH Physical Sidelink Shared Channel
  • the packet delay budget (Packet Delay Budget, PDB), the number of subchannels or the number of retransmissions of the first information are agreed by the protocol, configured by the control node, and dynamically indicated by the control node. , pre-configured by the control node, negotiated between terminals (for example, between the TX UE and the Co-UE), or determined by the first terminal autonomously.
  • PDB Packet Delay Budget
  • the above-mentioned control node may include: a network side device, a base station, a head node, a UE, an RX UE, or a relay (Relay) UE.
  • the PDB of the first information is related to the PDB of the first transport block (Transport Block, TB) to be transmitted.
  • the PDB value (or range) of each first TB to be transmitted corresponds to a PDB of the first information according to a protocol agreement or the control node configures.
  • the priority (priority) of the first information is agreed by a protocol, configured by a control node, dynamically indicated by a control node, pre-configured by a control node, or between terminals (for example, Negotiated between TX UE and Co-UE);
  • the priority of the first information is equal to the priority of the first TB to be transmitted.
  • the first information is carried by a MAC CE
  • the priority of the MAC CE may be configured or pre-configured by the control node.
  • the priority of the PSCCH or PSSCH is one of the following:
  • the priority of the first channel is the highest value among the priorities of all the information carried by the first channel.
  • the priority of the first channel is the priority of the first information.
  • the priority of the first channel is determined according to the priority of third information, and the third information includes other than the first information carried by the first channel other information.
  • the first information is information carried by a second channel
  • the second channel includes: a Physical Sidelink Feedback Channel (PSFCH) or a PSCCH, PSSCH or Channels other than PSFCH, ie newly defined channels (such as) PSxCH;
  • PSFCH Physical Sidelink Feedback Channel
  • PSCCH PSCCH
  • PSSCH PSSCH
  • Channels other than PSFCH ie newly defined channels (such as) PSxCH
  • the priority of the first information is agreed in the protocol, configured by the control node, dynamically indicated by the control node, pre-configured by the control node, or negotiated between terminals (for example, between the TX UE and the Co-UE) or, the priority of the first information is equal to the priority of the first TB to be transmitted.
  • the step of the first terminal sending the first information to the second terminal includes: the first terminal sending the first information to the second terminal through a third resource.
  • the above-mentioned third resource may also be referred to as a trigger signaling bearer resource.
  • the following describes the selection process for triggering the third resource and the transmission resource.
  • the method further includes one of the following:
  • the first terminal triggers the selection of the third resource and the selection of the transmission resource respectively.
  • the selection of the third resource is triggered first, and then the selection of the transmission resource is triggered.
  • the first terminal triggers the selection of the third resource and the selection of the transmission resource simultaneously;
  • the first terminal triggers the selection of the transmission resource, wherein the third resource is at least a part of the transmission resource.
  • the UE can select the resource to send the first information.
  • the step of triggering the selection of the third resource by the first terminal includes:
  • the first terminal triggers the selection of the third resource under a condition that the first terminal selects or reselects the first TB to be transmitted. Or, the first terminal autonomously decides whether to trigger the selection of the third resource.
  • the priority of the first information may also be used in the priority determination (SL prioritization) process of the SL transmission and other transmissions.
  • the above-mentioned SL prioritization process includes: sending and receiving of the first information, and/or sending and receiving of feedback signaling corresponding to the first information.
  • the receiving and sending of the second information may adopt different priority determination methods.
  • the priority of the first information is also used for priority judgment between the sending or receiving of the first information and other transmissions; wherein, the other transmissions include NR SL transmission, NR SL reception, NR uplink ( At least one of UpLink, UL) transmission, Evolved Universal Terrestrial Radio Access (EUTRA) SL transmission and EUTRA SL reception.
  • the other transmissions include NR SL transmission, NR SL reception, NR uplink ( At least one of UpLink, UL) transmission, Evolved Universal Terrestrial Radio Access (EUTRA) SL transmission and EUTRA SL reception.
  • the method further includes:
  • the first terminal transmits the first TB to be transmitted through a target resource selection mode, where the target resource selection mode is one or more of the first resource selection modes;
  • the first terminal transmits the first TB to be transmitted through a target resource, where the target resource is one or more of the transmission resources;
  • the first resource selection mode includes one or more of the following: a resource recommendation mode and an autonomous resource selection mode, the resource recommendation mode is used for the first terminal to acquire the first resource, and the autonomous resource selection mode The mode is for the first terminal to autonomously select the second resource.
  • the target resource selection mode or the target resource is agreed by a protocol, configured by a control node, dynamically instructed by a control node, pre-configured by a control node, or between terminals (for example, TX between the UE and the Co-UE) negotiated.
  • the target resource selection mode or the target resource is configured by the control node according to each resource pool (per pool); or, the target resource selection mode or the target resource
  • the resources are dynamically indicated by the control node according to each terminal (per UE).
  • the method further includes one or more of the following:
  • the first terminal determines the target resource selection mode or the target resource according to the capability or state of the first terminal
  • the TX UE may turn off the autonomous resource selection mode if the TX UE does not support the capability of carrier sensing (sensing)/is in a power saving state.
  • the first terminal determines the target resource selection mode or the target resource according to a channel busy ratio (Channel Busy Rate, CBR) or a channel occupancy rate (Channel Occupation Rate, CR);
  • CBR channel Busy Rate
  • CR channel occupancy rate
  • CBR or CR is greater than or equal to a preset value, and the TX UE adopts an autonomous resource selection mode (or uses autonomously selected resources);
  • the first terminal determines the target resource selection mode or the target resource according to the PDB (eg, remaining PDB) or priority of the first TB to be transmitted.
  • PDB eg, remaining PDB
  • the TX UE adopts the autonomous resource selection mode (or uses the autonomously selected resources).
  • the method further includes:
  • the first terminal determines, according to the CBR or CR, that the first resource is a resource expected to be used by the first terminal, or determines that the first resource is a resource not expected to be used by the first terminal.
  • the target resource selection mode or the target resource is dynamically selected by the first terminal, that is, the first terminal uses an autonomous resource selection mode or uses an autonomously selected resource.
  • the selection of the transmission resource is triggered by the first terminal autonomously, or is triggered based on the triggering condition of the autonomous resource selection in mode 2 (for example, mode 2 (mode 2) in Release 16 (Rel-16)). ;
  • the time interval between the triggering time of the selection of the transmission resource and the triggering time of the selection of the third resource (for example, the minimum triggering time or the maximum triggering time) is agreed in the protocol, configured by the control node, and predicted by the control node. Configured, negotiated by the terminal, or determined by preset rules;
  • the triggering of the selection of the transmission resource is related to the first information and/or the second information.
  • the time interval is determined according to the PDBs (such as remaining PDBs) transmitted by the first TB to be transmitted.
  • the triggering of the transmission resource selection is related to the first information and/or the second information, including one or more of the following:
  • the first terminal After triggering the selection of the third resource, if the first terminal fails to send or fails to send the first information within a preset time, the first terminal triggers the selection of the transmission resource;
  • the first terminal After triggering the selection of the third resource, if the first terminal does not receive or successfully demodulate the second information within a preset time, the first terminal triggers the selection of the transmission resource ;
  • the first terminal After the first information is sent, if the first terminal does not receive or successfully demodulate the second information within a preset time, the first terminal triggers the selection of the transmission resource;
  • the preset time is related to the PDBs of the first TB to be transmitted (eg, remaining PDBs).
  • the preset time limit is agreed upon in a protocol, configured or dynamically indicated by the control node, or pre-configured, or negotiated between UEs (for example, between a TX UE and a Co-UE).
  • the first terminal triggers the selection of the transmission resource
  • the first terminal triggers the selection of the transmission resource.
  • the transmission The location of resources is determined according to preset rules.
  • the transmission resource of the TB is located after X time units triggered by the resource selection, or after Y time units of the selected first information bearing resource, and X and Y are greater than or equal to 0.
  • the target resource selection mode or target resource selection criteria include one or more of the following:
  • the target resource selection mode preferentially uses the autonomous resource selection mode, or the target resource preferentially uses the second resource;
  • the target resource selection mode preferentially uses the resource recommendation mode, or the target resource preferentially uses the first resource
  • the target resource selection mode is one or more of the first resource selection modes autonomously selected by the first terminal, or the target resource is the first resource selection mode autonomously selected by the first terminal Some or all of one or more of the resources are transmitted.
  • the autonomous resource selection mode or the selection criterion of the second resource includes one or more of the following:
  • the first terminal adopts the autonomous resource selection mode or the second resource (that is, the first terminal uses the autonomously selected resource) ;
  • the first terminal adopts the autonomous resource selection mode or the second resource.
  • the TX UE adopts (/UE decides whether to adopt) the autonomous resource selection mode (/uses self-selected resources).
  • the situation that the first terminal does not acquire the first resource within a preset time includes one or more of the following:
  • the first terminal does not send or fails to send the first information within a preset time
  • the first terminal After the third resource selection is triggered or after the first information is sent, the first terminal does not receive or successfully demodulate the second information within a preset time;
  • the UE does not receive/demodulate the second information (resource recommendation signaling) within a preset time limit.
  • the first terminal does not receive or successfully demodulate the second information within a preset time, or the first terminal does not send or fails to successfully send the second information. the first information;
  • the UE does not receive/demodulate the second information (resource recommendation signaling) or does not transmit (successfully transmit) the first information (trigger signaling) within a preset time limit.
  • the first terminal Before the first resource autonomously selected by the first terminal, the first terminal does not receive or successfully demodulate the second information.
  • the preset time is related to the PDB (or the remaining PDBs) of the first TB to be transmitted; or, the preset time is agreed in a protocol, configured by a control node, or dynamically by a control node. Indicated, pre-configured by the control node, or negotiated between terminals (such as between the TX UE and the Co-UE).
  • the first resource selection mode includes: a resource recommendation mode and an autonomous resource selection mode, and the first terminal preferentially uses the recommended resource selection mode;
  • the transmission resources include: all or part of the first resources and the second resources, and the first terminal preferentially uses the first resources.
  • the meaning of priority use may be that the recommended resource is used if there is a resource recommendation, and the resource selected by yourself is used after the recommended resource is exhausted.
  • the TX UE in the case that the TX UE can obtain the first resource (recommended resource) within the time limit, the TX UE (preferentially) uses the recommended resource.
  • the TX UE does not acquire the first resource (recommended resource) within the time limit, but acquires the first resource (recommended resource) before completing the TB transmission, and the TX UE (preferentially) uses the first resource (recommended resource) to proceed. TB transfer.
  • the first terminal if the first terminal selects the resource recommendation mode or the autonomous resource selection mode, the first terminal keeps using the resource recommendation mode or the autonomous resource selection mode;
  • the first terminal If the first terminal selects the resource recommendation mode or the autonomous resource selection mode, the first terminal keeps transmitting the second TB using the resource selected in the autonomous resource selection mode or the resource recommendation mode.
  • the target resource when the target resource is a part or all of one or more of the transmission resources selected by the first terminal autonomously, the target resource satisfies the following: One or more of:
  • the number of the target resources is less than or equal to one or more of the maximum transmission times of the first TB to be transmitted, the number of the first resources, and the number of the second resources;
  • the preset restriction conditions include one or more of the following:
  • the preset restriction does not apply to at least one of the following situations:
  • the method further includes:
  • the first terminal reselects the second resource according to the preset restriction condition.
  • the TX UE reselects its autonomously selected resources to meet the preset constraints.
  • the method further includes:
  • the first terminal performs re-evaluation or pre-emption detection on the first resource.
  • the re-evaluation or pre-emption detection is agreed upon by a protocol, configured by a control node, dynamically indicated by a control node, between a control node and a configuration, or between a terminal (for example, a TX UE and Co-UE) negotiated.
  • the method further includes:
  • the first terminal After the first terminal performs re-evaluation or pre-emption detection on the first resource, the first terminal performs one or more of the following:
  • the timeliness of resource recommendation is improved through the first information and/or the second information, and the combination of recommended resources and autonomously selected resources can improve transmission reliability, timeliness, and transmission efficiency.
  • the present disclosure provides an apparatus for recommending sidelink resources.
  • the apparatus is applied to a first terminal.
  • the apparatus 300 includes an execution module 301 .
  • An execution module 301 configured to execute a first operation, where the first operation includes one or more of the following:
  • the transmission resource includes: a first resource and/or a second resource, the first resource is a resource recommended by the second terminal, and the second resource is an autonomous resource of the first terminal selected resource.
  • the above-mentioned second resource may also be referred to as an autonomously selected resource.
  • the first information is information carried by a first channel, and the first channel includes: PSCCH or PSSCH.
  • the PDB, the number of sub-channels, or the number of retransmissions of the first information are agreed by the protocol, configured by the control node, dynamically instructed by the control node, pre-configured by the control node, or between the terminals. negotiated between (for example, between the TX UE and the Co-UE), or determined by the first terminal autonomously.
  • the PDB of the first information is related to the PDB of the first transport block (Transport Block, TB) to be transmitted.
  • the PDB value (or range) of each first TB to be transmitted corresponds to a PDB of the first information according to a protocol agreement or the control node configures.
  • the priority (priority) of the first information is agreed by a protocol, configured by a control node, dynamically indicated by a control node, pre-configured by a control node, or between terminals (for example, Negotiated between TX UE and Co-UE);
  • the priority of the first information is equal to the priority of the first TB to be transmitted.
  • the priority of the first channel is the highest value among the priorities of all the information carried by the first channel.
  • the priority of the first channel is the priority of the first information.
  • the priority of the first channel is determined according to the priority of third information, and the third information includes other than the first information carried by the first channel other information.
  • the first information is information carried by a second channel
  • the second channel includes: PSFCH or a channel other than PSCCH, PSSCH or PSFCH;
  • the priority of the first information is agreed in the protocol, configured by the control node, dynamically indicated by the control node, pre-configured by the control node, or negotiated between terminals (for example, between the TX UE and the Co-UE) or, the priority of the first information is equal to the priority of the first TB to be transmitted.
  • the step of the first terminal sending the first information to the second terminal includes: the first terminal sending the first information to the second terminal through a third resource.
  • the executing module 301 is further configured to execute one of the following:
  • the step of triggering the selection of the third resource includes:
  • the first terminal triggers the selection of the third resource under a condition that the first terminal selects or reselects the first TB to be transmitted. Or, the first terminal autonomously decides whether to trigger the selection of the third resource.
  • the priority of the first information is also used for priority judgment between the sending or receiving of the first information and other transmissions; wherein, the other transmissions include NR SL sending, NR SL receiving, NR UL sending, EUTRA At least one of SL sending and EUTRA SL receiving.
  • the execution module 301 is further configured to:
  • the first TB to be transmitted is transmitted through a target resource selection mode, the target resource selection mode being one or more of the first resource selection modes;
  • the first TB to be transmitted is transmitted through a target resource, the target resource being one or more of the transmission resources;
  • the first resource selection mode includes one or more of the following: a resource recommendation mode and an autonomous resource selection mode, the resource recommendation mode is used for the first terminal to acquire the first resource, and the autonomous resource selection mode The mode is for the first terminal to autonomously select the second resource.
  • the target resource selection mode or the target resource is agreed by a protocol, configured by a control node, dynamically instructed by a control node, pre-configured by a control node, or between terminals (for example, TX between the UE and the Co-UE) negotiated.
  • the target resource selection mode or the target resource is configured by the control node according to each resource pool (per pool); or, the target resource selection mode or the target resource
  • the resources are dynamically indicated by the control node according to each terminal (per UE).
  • the executing module 301 is further configured to execute one or more of the following:
  • the first terminal determines the target resource selection mode or the target resource according to the PDB (eg, remaining PDB) or priority of the first TB to be transmitted.
  • PDB eg, remaining PDB
  • the execution module 301 is further configured to:
  • the first resource is a resource expected to be used by the first terminal, or the first resource is determined to be a resource not expected to be used by the first terminal.
  • the target resource selection mode or the target resource is dynamically selected by the first terminal, that is, the first terminal uses an autonomous resource selection mode or uses an autonomously selected resource.
  • the selection of the transmission resource is triggered by the first terminal autonomously, or is triggered based on the triggering condition of the autonomous resource selection in mode 2 (for example, mode 2 (mode 2) in Release 16 (Rel-16)). ;
  • the time interval between the triggering time for the selection of the transmission resource and the triggering time for the selection of the third resource (for example, the minimum triggering time or the maximum triggering time) is agreed in the protocol, configured by the control node, and predicted by the control node. Configured, negotiated by the terminal, or determined by preset rules;
  • the triggering of the selection of the transmission resource is related to the first information and/or the second information.
  • the time interval is determined according to the PDBs (eg, remaining PDBs) transmitted by the first TB to be transmitted.
  • the triggering of the transmission resource selection is related to the first information and/or the second information, including one or more of the following:
  • the first terminal After triggering the selection of the third resource, if the first terminal fails to send or fails to send the first information within a preset time, the first terminal triggers the selection of the transmission resource;
  • the first terminal After triggering the selection of the third resource, if the first terminal does not receive or successfully demodulate the second information within a preset time, the first terminal triggers the selection of the transmission resource ;
  • the first terminal After the first information is sent, if the first terminal fails or successfully receives the second information within a preset time, the first terminal triggers the selection of the transmission resource;
  • the preset time is related to the PDB of the first TB to be transmitted (such as the remaining PDBs).
  • the preset time limit is agreed upon in a protocol, configured or dynamically indicated by the control node, or pre-configured, or negotiated between UEs (for example, between a TX UE and a Co-UE).
  • the first terminal triggers the selection of the transmission resource
  • the first terminal triggers the selection of the transmission resource.
  • the transmission The location of resources is determined according to preset rules.
  • the TB transmission resource is located after X time units triggered by the resource selection, or after Y time units of the selected first information bearing resource, where X or Y is greater than or equal to 0.
  • the target resource selection mode or target resource selection criteria include one or more of the following:
  • the target resource selection mode preferentially uses the autonomous resource selection mode, or the target resource preferentially uses the second resource;
  • the target resource selection mode preferentially uses the resource recommendation mode, or the target resource preferentially uses the first resource
  • the target resource selection mode is one or more of the first resource selection modes autonomously selected by the first terminal, or the target resource is the first resource selection mode autonomously selected by the first terminal Some or all of one or more of the resources are transmitted.
  • the autonomous resource selection mode or the selection criterion of the second resource includes one or more of the following:
  • the first terminal adopts the autonomous resource selection mode or the second resource (that is, the first terminal uses the autonomously selected resource) ;
  • the first terminal adopts the autonomous resource selection mode or the second resource.
  • the situation that the first terminal does not acquire the first resource within a preset time includes one or more of the following:
  • the first terminal does not send or fails to send the first information within a preset time
  • the first terminal After the third resource selection is triggered, or after the first information is sent, the first terminal does not receive or successfully demodulate the second information within a preset time;
  • the first terminal does not receive or successfully demodulate the second information within a preset time, or the first terminal does not send or fails to successfully send the second information. the first information;
  • the first terminal Before the first resource autonomously selected by the first terminal, the first terminal does not receive or successfully demodulate the second information.
  • the preset time is related to the PDB (or the remaining PDBs) of the first TB to be transmitted; or, the preset time is agreed in a protocol, configured by a control node, or dynamically by a control node. Indicated, pre-configured by the control node, or negotiated between terminals (such as between the TX UE and the Co-UE).
  • the first resource selection mode includes: a resource recommendation mode and an autonomous resource selection mode, and the first terminal preferentially uses the recommended resource selection mode;
  • the transmission resources include: all or part of the first resources and the second resources, and the first terminal preferentially uses the first resources.
  • the first terminal if the first terminal selects the resource recommendation mode or the autonomous resource selection mode, the first terminal keeps using the resource recommendation mode or the autonomous resource selection mode;
  • the first terminal If the first terminal selects the resource recommendation mode or the autonomous resource selection mode, the first terminal keeps transmitting the second TB using the resource selected in the autonomous resource selection mode or the resource recommendation mode.
  • the target resource when the target resource is a part or all of one or more of the transmission resources selected by the first terminal autonomously, the target resource satisfies the following: One or more of:
  • the number of the target resources is less than or equal to one or more of the maximum transmission times of the first TB to be transmitted, the number of the first resources, and the number of the second resources;
  • the preset restriction conditions include one or more of the following:
  • the preset restriction does not apply to at least one of the following situations:
  • the execution module 301 is further configured to:
  • the second resource is reselected according to the preset restriction condition.
  • the TX UE reselects its autonomously selected resources to meet the preset constraints.
  • the execution module 301 is further configured to:
  • the re-evaluation or pre-emption detection is agreed upon by the protocol, configured by the control node, dynamically indicated by the control node, between the control node and the configuration, or between a terminal (for example, a TX UE and Co-UE) negotiated.
  • the execution module 301 is further configured to:
  • the first terminal After the first terminal performs re-evaluation or pre-emption detection on the first resource, perform one or more of the following:
  • the apparatus provided by the embodiment of the present disclosure can implement each process implemented by the method embodiment shown in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • An embodiment of the present disclosure further provides a terminal, including a processor and a communication interface, where the processor is configured to perform a first operation, where the first operation includes one or more of the following: (1) sending first information to a second terminal, The first information is used to trigger the second terminal to recommend the first resource to the first terminal; (2) receive second information from the second terminal, where the second information includes information about the first resource; (3) Selecting a transmission resource, where the transmission resource includes: the first resource and/or the second resource, and the second resource is a resource independently selected by the first terminal.
  • This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect.
  • FIG. 4 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present disclosure.
  • the terminal 400 includes but is not limited to: a radio frequency unit 401, a network module 402, an audio output unit 403, an input unit 404, a sensor 405, and a display unit 406 , the user input unit 407 , the interface unit 408 , the memory 409 , and at least some of the components in the processor 410 and the like.
  • the terminal 400 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 410 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power source such as a battery
  • the terminal structure shown in FIG. 4 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 404 may include a graphics processor (Graphics Processing Unit, GPU) 4041 and a microphone 4042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 406 may include a display panel 4061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 407 includes a touch panel 4071 and other input devices 4072 .
  • the touch panel 4071 is also called a touch screen.
  • the touch panel 4071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 4072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which are not described herein again.
  • the radio frequency unit 401 receives the downlink data from the network side device, and then processes it to the processor 410; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 401 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 409 may be used to store software programs or instructions as well as various data.
  • the memory 409 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 409 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 410 may include one or more processing units; optionally, the processor 410 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 410.
  • the terminal provided by the embodiment of the present disclosure can implement each process implemented by the method embodiment shown in FIG. 2 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • Embodiments of the present disclosure also provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement the processing described in FIG. 2 . steps of the method.
  • An embodiment of the present disclosure further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium.
  • a program or an instruction is stored on the readable storage medium.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present disclosure further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the method shown in FIG. 2 above. In order to avoid repetition, the details are not repeated here.
  • the chip mentioned in the embodiments of the present disclosure may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
  • An embodiment of the present disclosure further provides a communication device, which is configured to implement each process of the method embodiment shown in FIG. 2 above, and can achieve the same technical effect, which is not repeated here to avoid repetition.

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Abstract

本公开公开了一种旁链路资源推荐的方法、装置、设备及可读存储介质,属于通信技术领域,本公开实施例的方法包括:第一终端执行第一操作,所述第一操作包括以下一项或多项:向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主选择的资源。

Description

旁链路资源推荐的方法、装置、设备及可读存储介质
相关申请的交叉引用
本申请主张在2021年04月01日在中国提交的中国专利申请No.202110358451.2的优先权,其全部内容通过引用包含于此。
技术领域
本公开属于通信技术领域,具体涉及一种PDCCH监测能力的处理方法、终端及网络侧设备。
背景技术
新空口(New Radio,NR)旁链路(或称为副链路、侧链路或者边链路)(Sidelink,SL)资源分配方式有两种,一种基于基站调度(mode 1),另一种基于终端(比如用户设备(User Equipment,UE))自主资源选择(mode 2)。对于基站调度的资源分配方式,UE用于数据传输的sidelink资源由基站决定,并通过下行信令通知接收(receive,RX)UE;对于UE自主选择的资源分配方式,UE在(预)配置的资源池中选择可用的传输资源,UE在资源选择之前先进行信道监听,根据信道监听结果选择出干扰较小的资源集合,再从所述资源集合中随机选择用于传输的资源。
由于相关资源选择方法仅考虑UE自主资源选择,影响传输的可靠性和及时性。
发明内容
本公开实施例提供一种旁链路资源推荐的方法、装置、设备及可读存储介质,能够解决如何提高传输的可靠性和及时性的问题。
第一方面,提供一种旁链路资源推荐的方法,包括:
第一终端执行第一操作,所述第一操作包括以下一项或多项:
向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;
从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;
选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主选择的资源。
第二方面,提供一种旁链路资源推荐的装置,应用于第一终端,包括:
执行模块,用于执行第一操作,所述第一操作包括以下一项或多项:
向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;
从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;
选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主选择的资源。
第三方面,提供一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如第一方面所述的方法的步骤。
第四方面,提供了一种终端,包括处理器及通信接口,其中,所述处理器用于执行时实现如第一方面所述的方法的步骤。
第五方面,提供一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如第一方面所述的方法的步骤。
第六方面,提供一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如第一方面所述的处理的方法的步骤。
第七方面,提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如第一方面所述的处理的方法。
第八方面,提供了一种通信设备,被配置为执行如第一方面所述的处理的方法。
在本公开实施例中,通过第一信息和/或第二信息提高资源推荐的及时性,并且推荐资源和自主选择资源的结合可以提高传输的可靠性,及时性以及传 输效率。
附图说明
图1是本公开实施例可应用的一种无线通信系统的结构图;
图2是本公开实施例提供的旁链路资源推荐的方法的流程图;
图3是本公开实施例提供的旁链路资源推荐的装置的示意图;
图4是本公开实施例中终端的示意图。
具体实施方式
为了便于理解本公开的实施方式,下面先介绍以下技术点:
一、关于新空口(New Radio,NR)旁链路(Sidelink,SL)资源分配/选择的介绍。
NR SL资源分配方式有两种,一种基于基站调度(模式1(mode 1)),另一种基于终端(比如用户设备(User Equipment,UE))自主资源选择(模式2(mode 2))。
对于mode 2,具体的工作流程如下:
1)RX UE在资源选择被触发后,首先确定资源选择窗口,资源选择窗口的下边界在资源选择触发后的T1时间,资源选择的上边界在触发后的T2时间,其中T1是UE实现的方式在一个[T1_min,T1_max]范围内选择的,T2是UE实现的方式在其传输块(Transport Block,TB)传输的数据包时延预算(packet delay budget,PDB)内选择的值,T2不早于T1。
本文中传输的数据包时延预算(packet delay budget,PDB)也可以指剩余传输的数据包时延预算(remaining packet delay budget,remaining PDB)。
2)UE在资源选择的之前,需要确定资源选择的备选资源结合(candidate resource set),其中备选资源(比如,子信道(sub-channel))的个数由媒体接入控制(Medio Access Control,MAC)层确定,UE根据资源选择窗口内的资源上预估的参考信号接收功率(Reference Signal Receiving Power,RSRP)测量值(例如通过监听物理副链路控制信道(physical sidelink control channel,PSCCH)/物理副链路共享信道(physical sidelink shared channel,PSSCH)预 估)与相应的RSRP阈值(threshold)做对比,如果RSRP高于RSRP threhold,那么对该资源进行资源排除,不能纳入备选资源集合。进行资源排除后资源选择窗口内剩余的资源组成备选资源集合。备选资源集合中的资源在资源选择窗口中的资源的占比要不少于x%,如果少于x%,RSRP threshold需要按照步进值(3dB)进行增加,再进行所述资源排除操作,直到可以选出不少于所述x%的资源。另外,所述RSRP对比与待传输TB的优先级(priority)以及PSCCH上解调的priority值相关,具体过程不赘述。
3)备选资源集合确定后,UE随机在备选资源集合中选择传输资源,所选资源的个数根据MAC层的决策确定。
所述步骤1)和2)在物理层执行,所述步骤3)在高层(MAC层)执行。另外,UE在本次传输可以为接下来的传输预留传输资源。
二、关于Sidelink的资源预留/指示的介绍。
在NR SL中,TX UE会对其分配的资源进行资源预留/指示(预留分为周期性预留和非周期性预留),预留资源为以后的PSCCH/PSSCH传输所用。
非周期预留/指示可以通过副链路控制信息(Sidelink Control Information,SCI)中的时域资源分配(Time domain resource assignment)域实现(至少指示1~32时隙(slot)的资源),预留的资源至少可以用作同一个TB的传输。
周期预留/指示可以通过SCI中的资源预留期(Resource reservation period)域实现,当前周期预留的周期性资源可以用作下一个TB的传输。此处,某个频域资源周期性出现,可称为该资源的周期性资源。
三、关于SL资源抢占(Resource pre-emption)的介绍。
在Mode 2资源分配模式中,资源pre-emption机制被支持,该机制的简要描述如下。一个UE已经预留/选择的资源和其它具有更高优先级业务的UE所预留/选择的资源重叠(部分重叠),如果该UE在相关资源上的SL-RSRP测量值大于某个相关的(associated)SL-RSRP门限值时,该UE会触发资源的重新选择。所述的业务优先级和所述的SL-RSRP门限由在所述资源上的TB传输确定。
四、关于SL资源重评估(Resource re-evaluation)的介绍。
在Mode 2资源分配模式中,资源重评估机制被支持,该机制的简要描述 如下。至少对于UE已选择但未预留的资源(不排除其他形式的资源,由于篇幅不赘述),如果该资源和其它UE所预留/选择的资源重叠(部分重叠),如果该UE在相关资源上的SL-RSRP测量值大于某个associated SL-RSRP门限值时,该UE会触发资源的重新选择。
五、关于SL混合自动重传请求(Hybrid Automatic Repeat reQuest,HARQ)往返时延(Round-Trip Time,RTT)限制的介绍。
至少针对mode 2,为了保证PSSCH重传的资源出现在TX UE解调反馈信息之后,规定任意两次选择的PSSCH传输资源间的时间间隔需要大于HARQ RTT时间,以保证传输的效率和可靠性。
六、关于NR sidelink资源分配/选择的增强方案的介绍。
终端A(UE-A)决定一个资源集合,UE-A将资源集合通知给终端B(UE-B,UE-B)在进行mode 2资源选择可以考虑UE-A所通知的资源集合。
七、关于上行链路(UpLink,UL)/SL优先级(prioritization)判定流程方案的介绍。
SL发送/接收会和上行链路(Uplink,UL)发送发生冲突。在一些应用场景,如果发生冲突,低优先级的一方(SL/UL)要做丢弃/降功率操作。其中,为了判断SL发送/接收和UL发送间的优先级,标准定义了优先级判定规则,根据SL优先级索引(priority index)和/或UL priority index来确定最终的SL发送/接收和UL发送间优先级。
对于SL资源选择的增强方案,示例性的,可以考虑RX UE向发送(transport,TX)UE推荐资源,TX UE利用所述推荐资源进行传输;或者,负责协调的UE(coordination UE,Co-UE)向TX UE推荐资源TX UE利用所述推荐资源进行传输。其中Co-UE也可以作为是RX UE,或者说RX UE可以作为Co-UE。
为了保证传输的可靠性和有效性需要考虑其他UE(其他UE可以为资源推荐的目标UE)的传输参数等需求要素,而相关资源选择方法仅考虑本UE侧的传输需求。
另外,推荐资源的通知仍需要额外的传输资源,该资源可独立于TB的传输资源,而相关资源选择方法仅考虑TB传输资源的选择。
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行清楚地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员所获得的所有其他实施例,都属于本公开保护的范围。
本公开的说明书和权利要求书中的术语“第一”、“第二”等是用于区别类似的对象,而不用于描述指定的顺序或先后次序。应该理解这样使用的术语在适当情况下可以互换,以便本公开的实施例能够以除了在这里图示或描述的那些以外的顺序实施,且“第一”、“第二”所区别的对象通常为一类,并不限定对象的个数,例如第一对象可以是一个,也可以是多个。此外,说明书以及权利要求中“和”表示所连接对象的至少其中之一,字符“/”一般表示前后关联对象是一种“或”的关系。
值得指出的是,本公开实施例所描述的技术不限于长期演进型(Long Term Evolution,LTE)/LTE的演进(LTE-Advanced,LTE-A)系统,还可用于其他无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(Time Division Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。本公开实施例中的术语“系统”和“网络”常被可互换地使用,所描述的技术既可用于以上提及的系统和无线电技术,也可用于其他系统和无线电技术。以下描述出于示例目的描述了新空口(New Radio,NR)系统,并且在以下大部分描述中使用NR术语,但是这些技术也可应用于NR系统应用以外的应用,如第6代(6 th Generation,6G)通信系统。
参见图1,图中示出本公开实施例可应用的一种无线通信系统的结构图。无线通信系统包括终端11、网络侧设备12。其中,终端11也可以称作终端设备或者用户终端(User Equipment,UE),终端11可以是手机、平板电脑(Tablet Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant,PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer,UMPC)、移动上网装置(Mobile  Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备,可穿戴式设备包括:智能手表、手环、耳机、眼镜等。需要说明的是,在本公开实施例并不限定终端11的具体类型。
网络侧设备12可以是基站或核心网,其中,基站可被称为节点B、演进节点B、接入点、基收发机站(Base TransceiverStation,BTS)、无线电基站、无线电收发机、基本服务集(BasicServiceSet,BSS)、扩展服务集(ExtendedServiceSet,ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point,TRP)、无线接入网节点或所述领域中其他某个合适的术语,只要达到相同的技术效果,所述基站不限于指定技术词汇,需要说明的是,在本公开实施例中仅以NR系统中的基站为例,但是并不限定基站的具体类型。
下面结合附图,通过一些实施例及其应用场景对本公开实施例提供的一种一种旁链路资源推荐方法、装置、设备及可读存储介质进行详细地说明。
参见图2,本公开提供一种旁链路资源推荐的方法,该方法的执行主体可以是第一终端,具体步骤包括:步骤201。
步骤201:第一终端执行第一操作,所述第一操作包括以下一项或多项:
(1)向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;
上述第一终端也可以称为TX UE,第二终端可以称为Co-UE。
上述第一信息也可以称为触发信令,可选地,第一信息的形式可以是旁链路控制信息(Sidelink Control Information,SCI)、媒体接入控制单元(Medium Access Control Element,MAC CE)或者无线资源控制(Radio Resource Control,RRC)信令等。
上述第一资源也可以称为推荐资源。
(2)从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;
上述第二信息也可以称为资源推荐信令。
(3)选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主 选择的资源。
上述第二资源也可称为自主选择的资源。
在本公开的一种实施方式中,所述第一信息是第一信道承载的信息,所述第一信道包括:物理旁链路控制信道(Physical Sidelink Control CHannel,PSCCH)或者物理旁链路共享信道(Physical Sidelink Shared Channel,PSSCH)。也就是,采用PSCCH或者PSSCH承载第一信息。
在本公开的一种实施方式中,所述第一信息的分组时延预算(Packet Delay Budget,PDB)、子信道个数或者重传次数是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、终端之间(比如,TX UE和Co-UE之间)协商的、或者所述第一终端自主确定的。
上述控制节点可以包括:网络侧设备、基站、头节点、UE、RX UE或者中继(Relay)UE。
在本公开的一种实施方式中,所述第一信息的PDB与待传输的第一传输块(Transport Block,TB)的PDB相关。例如,协议约定或者控制节点配置每个待传输的第一TB的PDB值(或范围)对应一个第一信息的PDB。
在本公开的一种实施方式中,所述第一信息的优先级(priority)是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端之间(比如,TX UE和Co-UE之间)协商的;
或者,所述第一信息的优先级等于待传输的第一TB的优先级。
示例性地,第一信息由MAC CE携带,该MAC CE的优先级可以是控制节点配置或预配置的。
可选的,如果第一信息与其他信息复用PSCCH或PSSCH承载的信息,该PSCCH或PSSCH的优先级为以下之一:
(1)所有信息优先级中的最高值;
(2)第一信息的优先级;
(3)依据除第一信息外的其他信息的优先级确定。
在本公开的一种实施方式中,所述第一信道的优先级是所述第一信道承载的所有信息的优先级中的最高值。
在本公开的一种实施方式中,所述第一信道的优先级是所述第一信息的 优先级。
在本公开的一种实施方式中,所述第一信道的优先级是根据第三信息的优先级确定的,所述第三信息包括所述第一信道承载的除所述第一信息之外的其他信息。
在本公开的一种实施方式中,所述第一信息是第二信道承载的信息,所述第二信道包括:物理旁链路反馈道(Physical Sidelink Feedback Channel,PSFCH)或者除PSCCH、PSSCH或PSFCH之外的信道,即新定义的信道(比如)PSxCH;
其中,所述第一信息的优先级是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端之间(比如,TX UE和Co-UE之间)协商的;或者,所述第一信息的优先级等于待传输的第一TB的优先级。
在本公开的一种实施方式中,所述第一终端向第二终端发送第一信息的步骤,包括:所述第一终端通过第三资源向所述第二终端发送第一信息。
上述第三资源也可以称为触发信令承载资源。
下面介绍触发第三资源和传输资源的选择流程。
在本公开的一种实施方式中,所述方法还包括以下之一:
(1)所述第一终端分别触发所述第三资源的选择和所述传输资源的选择。
比如,先触发第三资源的选择,之后触发传输资源的选择。
(2)所述第一终端同时触发所述第三资源的选择和所述传输资源的选择;
(3)所述第一终端触发所述传输资源的选择,其中,所述第三资源是所述传输资源的至少部分资源。
也就是,仅触发传输资源的选择,触发传输资源的选择后,UE可选择资源发送第一信息。
在本公开的一种实施方式中,所述第一终端触发所述第三资源的选择的步骤,包括:
在满足所述第一终端选择或重选待传输的第一TB条件的情况下,所述第一终端触发所述第三资源的选择。或者,第一终端自主决定是否触发第三资源的选择。
可选地,第一信息的优先级还可用于所述SL传输和其他传输的优先级判定(SL prioritization)流程。
上述SL prioritization流程包括:第一信息的收发,和/或第一信息对应的反馈信令的收发。
需要说明的是,第二信息的接收和发送可采用不同的priority确定方式。
示例性地,所述第一信息的优先级还用于第一信息发送或接收与其他传输间的优先级判断;其中,所述其他传输包括NR SL发送,NR SL接收,NR上行链路(UpLink,UL)发送,演进的通用陆面无线接入(Evolved Universal Terrestrial Radio Access,EUTRA)SL发送和EUTRA SL接收中至少之一。
在本公开的一种实施方式中,所述方法还包括:
所述第一终端通过目标资源选择模式传输待传输的第一TB,所述目标资源选择模式是第一资源选择模式中的一种或多种;
或者,
所述第一终端通过目标资源传输待传输的第一TB,所述目标资源是所述传输资源中的一种或多种;
其中,所述第一资源选择模式包括以下一项或多项:资源推荐模式和自主资源选择模式,所述资源推荐模式用于所述第一终端获取所述第一资源,所述自主资源选择模式用于所述第一终端自主选择所述第二资源。
在本公开的一种实施方式中,所述目标资源选择模式或者所述目标资源是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端间(比如,TX UE和Co-UE之间)协商的。
在本公开的一种实施方式中,所述目标资源选择模式或者所述目标资源是所述控制节点按照每个资源池(per pool)配置的;或者,所述目标资源选择模式或者所述目标资源是所述控制节点按照每个终端(per UE)动态指示的。
在本公开的一种实施方式中,所述方法还包括以下一项或多项:
(1)所述第一终端根据所述第一终端的能力或状态,确定所述目标资源选择模式或者所述目标资源;
示例性的,如果TX UE不支持载波监听(sensing)的能力/处于省电状态, TX UE可以关闭自主资源选择模式。
(2)所述第一终端根据信道忙碌比率(Channel Busy Rate,CBR)或者信道占用率(Channel Occupation Rate,CR),确定所述目标资源选择模式或者所述目标资源;
示例性的,CBR或者CR大于或等于预设值,TX UE采用自主资源选择模式(或者使用自主选择的资源);
(3)所述第一终端根据所述待传输的第一TB的PDB(比如剩余(remaining)PDB)或者优先级,确定所述目标资源选择模式或者所述目标资源。
示例性的,如果remaining PDB或者优先级小于或等于预设值,TX UE采用自主资源选择模式(或者使用自主选择的资源)。
在本公开的一种实施方式中,所述方法还包括:
所述第一终端根据CBR或者CR,确定所述第一资源为所述第一终端期望使用的资源,或者确定所述第一资源为所述第一终端不期望使用的资源。
在本公开的一种实施方式中,所述目标资源选择模式或者所述目标资源是所述第一终端动态选择的,即,第一终端使用自主资源选择模式或者使用自主选择的资源。
在本公开的一种实施方式中,在所述传输资源的选择和所述第三资源的选择是独立触发的情况下,
(1)所述传输资源的选择是基于所述第一终端自主触发的,或者基于模式2(比如,版本16(Rel-16)中模式2(mode 2))自主资源选择的触发条件触发的;
或者,
(2)所述传输资源的选择的触发时间和所述第三资源的选择的触发时间(比如,最小触发时间或者最大触发时间)的时间间隔是协议约定的、控制节点配置的、控制节点预配置的、终端协商的、或者预设规则确定的;
或者,
(3)所述传输资源的选择的触发与所述第一信息和/或第二信息相关。
在本公开的一种实施方式中,所述时间间隔是根据待传输的第一TB传 输的PDB(比如剩余PDB)确定的。
在本公开的一种实施方式中,所述传输资源选择的触发与所述第一信息和/或第二信息相关,包括以下一项或多项:
(1)在触发选择所述第三资源之后,如果所述第一终端在预设时间内没有发送或没有成功发送所述第一信息,则所述第一终端触发所述传输资源的选择;
(2)在触发选择所述第三资源之后,如果所述第一终端在预设时间内没有接收或没有成功解调所述第二信息,则所述第一终端触发所述传输资源的选择;
(3)在所述第一信息发送之后,如果所述第一终端在预设时间内没有接收或没有成功解调所述第二信息,则所述第一终端触发所述传输资源的选择;
可选地,预设时间与待传输的第一TB的PDB(比如剩余PDB)相关。
可选地,预设时限由协议约定的、控制节点配置或动态指示的或预配置的、或者UE间(比如TX UE和Co-UE间)协商的。
(4)在接收到或成功接收到所述第二信息的情况下,所述第一终端触发所述传输资源的选择;
(5)在发送或成功发送所述第一信息的情况下,所述第一终端触发所述传输资源的选择。
在本公开的一种实施方式中,在所述传输资源的选择和所述第三资源的选择是同时触发(或者统一触发)的情况下(此时,仅需触发传输资源),所述传输资源的位置是根据预设规则确定的。
例如,TB的传输资源位于所述资源选择触发的X个时间单元之后,或所选第一信息承载资源的Y个时间单元之后,X、Y大于或等于0。
在本公开的一种实施方式中,所述目标资源选择模式或目标资源的选择准则,包括以下一项或多项:
(1)所述目标资源选择模式优先使用自主资源选择模式,或者所述目标资源优先使用所述第二资源;
(2)所述目标资源选择模式优先使用资源推荐模式,或者所述目标资源优先使用所述第一资源;
(3)所述目标资源选择模式是所述第一终端自主选择的所述第一资源选择模式中的一种或多种,或者,所述目标资源是所述第一终端自主选择的所述传输资源中的一种或多种资源中的部分或全部。
在本公开的一种实施方式中,所述自主资源选择模式或者第二资源的选择准则,包括以下一项或多项:
(1)在所述第一终端在预设时间内没有获取第一资源的情况下,所述第一终端采用自主资源选择模式或者所述第二资源(即第一终端使用自主选择的资源);
(2)在所述第一资源用完时,或者在所述第一资源用完后的一个或多个时间单元之后,所述第一终端采用自主资源选择模式或者所述第二资源。
比如,推荐资源用完后/过后的一个或多个时间单位,(可选的,如果没有获取到新的推荐资源),TX UE采用(/UE实现决定是否采用)自主资源选择模式(/使用自主选择的资源)。
在本公开的一种实施方式中,所述第一终端在预设时间内没有获取第一资源的情况,包括以下一项或多项:
(1)在所述第三资源选择触发后,所述第一终端在预设时间内没有发送或没有成功发送第一信息;
也就是,在第一信息(触发信令)承载资源选择触发后,如果UE在预设时限内没有或没有成功发送第一信息。
(2)在所述第三资源选择触发后,或者所述第一信息发送之后,所述第一终端在预设时间内没有接收到或没有成功解调所述第二信息;
也就是,在第一信息承载资源选择触发后或者第一信息发送后,如果UE在预设时限内没有收到/没有成功解调第二信息(资源推荐信令)。
(3)在所述传输资源选择触发后,所述第一终端在预设时间内没有接收到或没有成功解调所述第二信息,或者,所述第一终端没有发送或者没有成功发送所述第一信息;
也就是,在资源选择触发后,如果UE在预设时限内没有收到/没有成功解调第二信息(资源推荐信令)或没有发送(没有成功发送)第一信息(触发信令)。
(4)所述第一终端在自主选择的第一个资源之前,所述第一终端没有接收到或者没有成功解调所述第二信息。
在本公开的一种实施方式中,所述预设时间与待传输第一TB的PDB(或者剩余PDB)相关;或者,所述预设时间是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端间(比如TX UE和Co-UE间)协商的。
在本公开的一种实施方式中,所述第一资源选择模式包括:资源推荐模式和自主资源选择模式,所述第一终端优先使用推荐资源选择模式;
或者,
所述传输资源包括:第一资源和第二资源中的全部或部分资源,所述第一终端优先使用所述第一资源。
其中,优先使用的含义可以是,如果有资源推荐就使用推荐资源,推荐资源用完再使用自主选择的资源。
示例性的,TX UE在时限内可获取第一资源(推荐资源)情况下,TX UE(优先)使用推荐资源。
示例性的,TX UE在时限内没有获取第一资源(推荐资源),但完成TB传输前获取了第一资源(推荐资源),TX UE(优先)使用该第一资源(推荐资源)继续进行TB传输。
在本公开的一种实施方式中,如果所述第一终端选择资源推荐模式或自主资源选择模式,则所述第一终端保持使用资源推荐模式或自主资源选择模式;
和/或,
如果所述第一终端选择资源推荐模式或自主资源选择模式,则所述第一终端保持使用自主资源选择模式或资源推荐模式选择的资源传输第二TB。
示例性地,对于一个TB传输,如果只允许采用一种模式选择的资源,一旦模式确定,UE不可更改模式;和/或,另一种模式选择的资源可用于其他TB传输(例如,用于传向同一个RX UE/目的(destination)ID的TB传输)。
在本公开的一种实施方式中,所述目标资源是所述第一终端自主选择的 所述传输资源中的一种或多种资源中的部分或全部的情况下,所述目标资源满足以下一项或多项:
(1)所述目标资源的个数小于或等于待传输的第一TB的最大传输次数,所述第一资源的个数,所述第二资源的个数中的一项或多项;
(2)所述第一终端不能丢弃已经预留的资源;
(3)所述目标资源满足预设限制条件;
其中,所述预设限制条件包括以下一项或多项:
(a)对于HARQ反馈的待传输的TB或者对于配置了PSFCH的资源池,任意两个目标资源间的距离满足HARQ RTT要求;
(b)任意两个目标资源间的时间间隔小于预设值。
在本公开的一种实施方式中,所述预设限制条件不适用于以下至少一种情况:
(1)所述第一资源和所述第二资源之间;
(2)所述第一资源之间;
(3)所述第一信息指示的第一个所述第一资源和在所述第一个第一资源之前的第二资源之间;
(4)所述第一信息指示的最后一个所述第一资源和在所述最后一个所述第一资源之后的第二资源之间。
在本公开的一种实施方式中,所述方法还包括:
所述第一终端根据所述预设限制条件重选所述第二资源。示例性地,TX UE重选其自主选择的资源,以满足所述预设限制。
在本公开的一种实施方式中,所述方法还包括:
所述第一终端对所述第一资源进行重新评价(re-evaluation)或先占(pre-emption)检测。
在本公开的一种实施方式中,所述re-evaluation或pre-emption检测是协议约定的、控制节点配置的、控制节点动态指示的、控制节点与配置的、或者终端间(比如,TX UE和Co-UE间)协商的。
在本公开的一种实施方式中,所述方法还包括:
在所述第一终端对所述第一资源进行重新评价re-evaluation或先占 pre-emption检测之后,所述第一终端执行以下一项或多项:
(1)丢弃干扰资源;
(2)重选所述第一资源;
(3)选择所述第二资源。
在本公开实施例中,通过第一信息和/或第二信息提高资源推荐的及时性,并且推荐资源和自主选择资源的结合可以提高传输的可靠性,及时性以及传输效率。
参见图3,本公开提供一种旁链路资源推荐的装置,该装置应用于第一终端,装置300包括:执行模块301。
执行模块301,用于执行第一操作,所述第一操作包括以下一项或多项:
(1)向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;
(2)从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;
(3)选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主选择的资源。
上述第二资源也可称为自主选择的资源。
在本公开的一种实施方式中,所述第一信息是第一信道承载的信息,所述第一信道包括:PSCCH或者PSSCH。在本公开的一种实施方式中,所述第一信息的PDB、子信道个数或者重传次数是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、终端之间(比如,TX UE和Co-UE之间)协商的、或者所述第一终端自主确定的。
在本公开的一种实施方式中,所述第一信息的PDB与待传输的第一传输块(Transport Block,TB)的PDB相关。例如,协议约定或者控制节点配置每个待传输的第一TB的PDB值(或范围)对应一个第一信息的PDB。
在本公开的一种实施方式中,所述第一信息的优先级(priority)是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端之间(比如,TX UE和Co-UE之间)协商的;
或者,所述第一信息的优先级等于待传输的第一TB的优先级。
在本公开的一种实施方式中,所述第一信道的优先级是所述第一信道承载的所有信息的优先级中的最高值。
在本公开的一种实施方式中,所述第一信道的优先级是所述第一信息的优先级。
在本公开的一种实施方式中,所述第一信道的优先级是根据第三信息的优先级确定的,所述第三信息包括所述第一信道承载的除所述第一信息之外的其他信息。
在本公开的一种实施方式中,所述第一信息是第二信道承载的信息,所述第二信道包括:PSFCH或者除PSCCH、PSSCH或PSFCH之外的信道;
其中,所述第一信息的优先级是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端之间(比如,TX UE和Co-UE之间)协商的;或者,所述第一信息的优先级等于待传输的第一TB的优先级。
在本公开的一种实施方式中,所述第一终端向第二终端发送第一信息的步骤,包括:所述第一终端通过第三资源向所述第二终端发送第一信息。
在本公开的一种实施方式中,所述执行模块301还用于执行以下之一:
(1)分别触发所述第三资源的选择和所述传输资源的选择。
(2)同时触发所述第三资源的选择和所述传输资源的选择;
(3)触发所述传输资源的选择,其中,所述第三资源是所述传输资源的至少部分资源。
在本公开的一种实施方式中,所述触发所述第三资源的选择的步骤,包括:
在满足所述第一终端选择或重选待传输的第一TB条件的情况下,所述第一终端触发所述第三资源的选择。或者,第一终端自主决定是否触发第三资源的选择。
可选地,所述第一信息的优先级还用于第一信息发送或接收与其他传输间的优先级判断;其中,所述其他传输包括NR SL发送,NR SL接收,NR UL发送,EUTRA SL发送和EUTRA SL接收中至少之一。
在本公开的一种实施方式中,所述执行模块301还用于:
通过目标资源选择模式传输待传输的第一TB,所述目标资源选择模式是第一资源选择模式中的一种或多种;
或者,
通过目标资源传输待传输的第一TB,所述目标资源是所述传输资源中的一种或多种;
其中,所述第一资源选择模式包括以下一项或多项:资源推荐模式和自主资源选择模式,所述资源推荐模式用于所述第一终端获取所述第一资源,所述自主资源选择模式用于所述第一终端自主选择所述第二资源。
在本公开的一种实施方式中,所述目标资源选择模式或者所述目标资源是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端间(比如,TX UE和Co-UE之间)协商的。
在本公开的一种实施方式中,所述目标资源选择模式或者所述目标资源是所述控制节点按照每个资源池(per pool)配置的;或者,所述目标资源选择模式或者所述目标资源是所述控制节点按照每个终端(per UE)动态指示的。
在本公开的一种实施方式中,所述执行模块301还用于执行以下一项或多项:
(1)根据所述第一终端的能力或状态,确定所述目标资源选择模式或者所述目标资源;
(2)根据CBR或者CR,确定所述目标资源选择模式或者所述目标资源;
(3)所述第一终端根据所述待传输的第一TB的PDB(比如剩余(remaining)PDB)或者优先级,确定所述目标资源选择模式或者所述目标资源。
在本公开的一种实施方式中,执行模块301还用于:
根据CBR或者CR,确定所述第一资源为所述第一终端期望使用的资源,或者确定所述第一资源为所述第一终端不期望使用的资源。
在本公开的一种实施方式中,所述目标资源选择模式或者所述目标资源是所述第一终端动态选择的,即,第一终端使用自主资源选择模式或者使用 自主选择的资源。
在本公开的一种实施方式中,在所述传输资源的选择和所述第三资源的选择是独立触发的情况下,
(1)所述传输资源的选择是基于所述第一终端自主触发的,或者基于模式2(比如,版本16(Rel-16)中模式2(mode 2))自主资源选择的触发条件触发的;
或者,
(2)所述传输资源的选择的触发时间和所述第三资源的选择的触发时间(比如,最小触发时间或者最大触发时间)的时间间隔是协议约定的、控制节点配置的、控制节点预配置的、终端协商的、或者预设规则确定的;
或者,
(3)所述传输资源的选择的触发与所述第一信息和/或第二信息相关。
在本公开的一种实施方式中,所述时间间隔是根据待传输的第一TB传输的PDB(比如剩余PDB)确定的。
在本公开的一种实施方式中,所述传输资源选择的触发与所述第一信息和/或第二信息相关,包括以下一项或多项:
(1)在触发选择所述第三资源之后,如果所述第一终端在预设时间内没有发送或没有成功发送所述第一信息,则所述第一终端触发所述传输资源的选择;
(2)在触发选择所述第三资源之后,如果所述第一终端在预设时间内没有接收或没有成功解调所述第二信息,则所述第一终端触发所述传输资源的选择;
(3)在所述第一信息发送之后,如果所述第一终端在预设时间内没有或成功接收所述第二信息,则所述第一终端触发所述传输资源的选择;
可选地,预设时间与待传输的第一TB的PDB(比如剩余PDB)相关。
可选地,预设时限由协议约定的、控制节点配置或动态指示的或预配置的、或者UE间(比如TX UE和Co-UE间)协商的。
(4)在接收到或成功接收到所述第一信息的情况下,所述第一终端触发 所述传输资源的选择;
(5)在发送或成功发送所述第二信息的情况下,所述第一终端触发所述传输资源的选择。
在本公开的一种实施方式中,在所述传输资源的选择和所述第三资源的选择是同时触发(或者统一触发)的情况下(此时,仅需触发传输资源),所述传输资源的位置是根据预设规则确定的。
例如,TB传输资源位于所述资源选择触发的X个时间单元之后,或所选第一信息承载资源的Y个时间单元之后,X或Y大于或等于0。
在本公开的一种实施方式中,所述目标资源选择模式或目标资源的选择准则,包括以下一项或多项:
(1)所述目标资源选择模式优先使用自主资源选择模式,或者所述目标资源优先使用所述第二资源;
(2)所述目标资源选择模式优先使用资源推荐模式,或者所述目标资源优先使用所述第一资源;
(3)所述目标资源选择模式是所述第一终端自主选择的所述第一资源选择模式中的一种或多种,或者,所述目标资源是所述第一终端自主选择的所述传输资源中的一种或多种资源中的部分或全部。
在本公开的一种实施方式中,所述自主资源选择模式或者第二资源的选择准则,包括以下一项或多项:
(1)在所述第一终端在预设时间内没有获取第一资源的情况下,所述第一终端采用自主资源选择模式或者所述第二资源(即第一终端使用自主选择的资源);
(2)在所述第一资源用完时,或者在所述第一资源用完后的一个或多个时间单元之后,所述第一终端采用自主资源选择模式或者所述第二资源。
在本公开的一种实施方式中,所述第一终端在预设时间内没有获取第一资源的情况,包括以下一项或多项:
(1)在所述第三资源选择触发后,所述第一终端在预设时间内没有发送或没有成功发送第一信息;
(2)在所述第三资源选择触发后,或者所述第一信息发送之后,所述第 一终端在预设时间内没有接收到或没有成功解调所述第二信息;
(3)在所述传输资源选择触发后,所述第一终端在预设时间内没有接收到或没有成功解调所述第二信息,或者,所述第一终端没有发送或者没有成功发送所述第一信息;
(4)所述第一终端在自主选择的第一个资源之前,所述第一终端没有接收到或者没有成功解调所述第二信息。
在本公开的一种实施方式中,所述预设时间与待传输第一TB的PDB(或者剩余PDB)相关;或者,所述预设时间是协议约定的、控制节点配置的、控制节点动态指示的、控制节点预配置的、或者终端间(比如TX UE和Co-UE间)协商的。
在本公开的一种实施方式中,所述第一资源选择模式包括:资源推荐模式和自主资源选择模式,所述第一终端优先使用推荐资源选择模式;
或者,
所述传输资源包括:第一资源和第二资源中的全部或部分资源,所述第一终端优先使用所述第一资源。
在本公开的一种实施方式中,如果所述第一终端选择资源推荐模式或自主资源选择模式,则所述第一终端保持使用资源推荐模式或自主资源选择模式;
和/或,
如果所述第一终端选择资源推荐模式或自主资源选择模式,则所述第一终端保持使用自主资源选择模式或资源推荐模式选择的资源传输第二TB。
在本公开的一种实施方式中,所述目标资源是所述第一终端自主选择的所述传输资源中的一种或多种资源中的部分或全部的情况下,所述目标资源满足以下一项或多项:
(1)所述目标资源的个数小于或等于待传输的第一TB的最大传输次数,所述第一资源的个数,所述第二资源的个数中的一项或多项;
(2)所述第一终端不能丢弃已经预留的资源;
(3)所述目标资源满足预设限制条件;
其中,所述预设限制条件包括以下一项或多项:
(a)对于HARQ反馈的待传输的TB或者对于配置了PSFCH的资源池,任意两个目标资源间的距离满足HARQ RTT要求;
(b)任意两个目标资源间的时间间隔小于预设值。
在本公开的一种实施方式中,所述预设限制条件不适用于以下至少一种情况:
(1)所述第一资源和所述第二资源之间;
(2)所述第一资源之间;
(3)所述第一信息指示的第一个所述第一资源和在所述第一个第一资源之前的第二资源之间;
(4)所述第一信息指示的最后一个所述第一资源和在所述最后一个所述第一资源之后的第二资源之间。
在本公开的一种实施方式中,所述执行模块301还用于:
根据所述预设限制条件重选所述第二资源。示例性地,TX UE重选其自主选择的资源,以满足所述预设限制。
在本公开的一种实施方式中,执行模块301还用于:
对所述第一资源进行re-evaluation或pre-emption检测。
在本公开的一种实施方式中,所述re-evaluation或pre-emption检测是协议约定的、控制节点配置的、控制节点动态指示的、控制节点与配置的、或终端间(比如,TX UE和Co-UE间)协商的。
在本公开的一种实施方式中,执行模块301还用于:
在所述第一终端对所述第一资源进行重新评价re-evaluation或先占pre-emption检测之后,执行以下一项或多项:
(1)丢弃干扰资源;
(2)重选所述第一资源;
(3)选择所述第二资源。
本公开实施例提供的装置能够实现图2所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本公开实施例还提供一种终端,包括处理器和通信接口,处理器用于执行第一操作,所述第一操作包括以下一项或多项:(1)向第二终端发送第一 信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;(2)从所述第二终端接收第二信息,所述第二信息包括所述第一资源的信息;(3)选择传输资源,所述传输资源包括:所述第一资源和/或第二资源,所述第二资源是所述第一终端自主选择的资源。该终端实施例是与上述终端侧方法实施例对应的,上述方法实施例的各个实施过程和实现方式均可适用于该终端实施例中,且能达到相同的技术效果。
具体地,图4为实现本公开实施例的一种终端的硬件结构示意图,该终端400包括但不限于:射频单元401、网络模块402、音频输出单元403、输入单元404、传感器405、显示单元406、用户输入单元407、接口单元408、存储器409、以及处理器410等中的至少部分部件。
本领域技术人员可以理解,终端400还可以包括给各个部件供电的电源(比如电池),电源可以通过电源管理系统与处理器410逻辑相连,从而通过电源管理系统实现管理充电、放电、以及功耗管理等功能。图4中示出的终端结构并不构成对终端的限定,终端可以包括比图示更多或更少的部件,或者组合某些部件,或者不同的部件布置,在此不再赘述。
应理解的是,本公开实施例中,输入单元404可以包括图形处理器(Graphics Processing Unit,GPU)4041和麦克风4042,图形处理器4041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元406可包括显示面板4061,可以采用液晶显示器、有机发光二极管等形式来配置显示面板4061。用户输入单元407包括触控面板4071以及其他输入设备4072。触控面板4071,也称为触摸屏。触控面板4071可包括触摸检测装置和触摸控制器两个部分。其他输入设备4072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆,在此不再赘述。
本公开实施例中,射频单元401将来自网络侧设备的下行数据接收后,给处理器410处理;另外,将上行的数据发送给网络侧设备。通常,射频单元401包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器409可用于存储软件程序或指令以及各种数据。存储器409可主 要包括存储程序或指令区和存储数据区,其中,存储程序或指令区可存储操作系统、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外,存储器409可以包括高速随机存取存储器,还可以包括非易失性存储器,其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器410可包括一个或多个处理单元;可选的,处理器410可集成应用处理器和调制解调处理器,其中,应用处理器主要处理操作系统、用户界面和应用程序或指令等,调制解调处理器主要处理无线通信,如基带处理器。可以理解的是,上述调制解调处理器也可以不集成到处理器410中。
本公开实施例提供的终端能够实现图2所示的方法实施例实现的各个过程,并达到相同的技术效果,为避免重复,这里不再赘述。
本公开实施例还提供一种计算机程序/程序产品,所述计算机程序/程序产品被存储在存储介质中,所述计算机程序/程序产品被至少一个处理器执行以实现如图2所述的处理的方法的步骤。
本公开实施例还提供一种可读存储介质,所述可读存储介质上存储有程序或指令,该程序或指令被处理器执行时实现上述图2所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
其中,所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质,包括计算机可读存储介质,如计算机只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等。
本公开实施例还提供了一种芯片,所述芯片包括处理器和通信接口,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现上述图2所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
应理解,本公开实施例提到的芯片还可以称为系统级芯片,系统芯片, 芯片系统或片上系统芯片等。
本公开实施例还提供了一种通信设备,被配置为实现上述图2所示方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。
需要说明的是,在本文中,术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含,从而使得包括一系列要素的过程、方法、物品或者装置不仅包括那些要素,而且还包括没有明确列出的其他要素,或者是还包括为这种过程、方法、物品或者装置所固有的要素。在没有更多限制的情况下,由语句“包括一个……”限定的要素,并不排除在包括该要素的过程、方法、物品或者装置中还存在另外的相同要素。此外,需要指出的是,本公开实施方式中的方法和装置的范围不限按示出或讨论的顺序来执行功能,还可包括根据所涉及的功能按基本同时的方式或按相反的顺序来执行功能,例如,可以按不同于所描述的次序来执行所描述的方法,并且还可以添加、省去、或组合各种步骤。另外,参照某些示例所描述的特征可在其他示例中被组合。
通过以上的实施方式的描述,本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本公开的技术方案本质上或者说对相关技术做出贡献的部分可以以计算机程序产品的形式体现出来,该计算机程序产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中,包括若干指令用以使得一台终端(可以是手机,计算机,服务器,空调器,或者网络设备等)执行本公开各个实施例所述的方法。
上面结合附图对本公开的实施例进行了描述,但是本公开并不局限于上述的具体实施方式,上述的具体实施方式仅仅是示意性的,而不是限制性的,本领域的普通技术人员在本公开的启示下,在不脱离本公开宗旨和权利要求所保护的范围情况下,还可做出很多形式,均属于本公开的保护之内。

Claims (40)

  1. 一种旁链路资源推荐的方法,包括:
    第一终端执行第一操作,所述第一操作包括以下一项或多项:
    向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;
    从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;
    选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主选择的资源。
  2. 根据权利要求1所述的方法,其中,所述第一信息是第一信道承载的信息,所述第一信道包括:物理旁链路控制信道PSCCH或者物理旁链路共享信道PSSCH。
  3. 根据权利要求1所述的方法,其中,所述第一信息的分组时延预算PDB、子信道个数或者重传次数是协议约定的、控制节点配置或预配置的、控制节点动态指示的、终端之间协商的、或者所述第一终端自主确定的。
  4. 根据权利要求1所述的方法,其中,所述第一信息的PDB与待传输的第一传输块TB的PDB相关。
  5. 根据权利要求1所述的方法,其中,所述第一信息的优先级是协议约定的、控制节点配置或预配置的、控制节点动态指示的、或者终端之间协商的;或者,所述第一信息的优先级等于待传输的第一TB的优先级。
  6. 根据权利要求2所述的方法,其中,所述第一信道的优先级是所述第一信道承载的所有信息的优先级中的最高值;
    或者,
    所述第一信道的优先级是所述第一信息的优先级;
    或者,
    所述第一信道的优先级是根据第三信息的优先级确定的,所述第三信息包括所述第一信道承载的除所述第一信息之外的其他信息。
  7. 根据权利要求1所述的方法,其中,所述第一信息是第二信道承载的 信息,所述第二信道包括:物理旁链路反馈道PSFCH或者除物理旁链路控制信道PSCCH、物理旁链路共享信道PSSCH或PSFCH之外的信道;
    其中,所述第一信息的优先级是协议约定的、控制节点配置或预配置的、控制节点动态指示的、或者终端之间协商的;或者,所述第一信息的优先级等于待传输的第一TB的优先级。
  8. 根据权利要求1所述的方法,其中,所述第一终端向第二终端发送第一信息的步骤,包括:
    所述第一终端通过第三资源向所述第二终端发送第一信息。
  9. 根据权利要求8所述的方法,其中,所述方法还包括:
    所述第一终端分别触发所述第三资源的选择和所述传输资源的选择。
  10. 根据权利要求8所述的方法,其中,所述方法还包括:
    所述第一终端同时触发所述第三资源的选择和所述传输资源的选择;
    或者,
    所述第一终端触发所述传输资源的选择,其中,所述第三资源是所述传输资源的至少部分资源。
  11. 根据权利要求10所述的方法,其中,所述第一终端触发所述第三资源的选择的步骤,包括:
    在满足所述第一终端选择或重选待传输的第一TB条件的情况下,所述第一终端触发所述第三资源的选择。
  12. 根据权利要求5或7所述的方法,其中,所述第一信息的优先级还用于所述第一信息发送或接收与其他传输间的优先级判断;其中,所述其他传输包括:新空口NR旁链路SL发送,NR SL接收,NR上行链路UL发送,演进的通用陆面无线接入EUTRA SL发送和EUTRA SL接收中至少之一。
  13. 根据权利要求1或8所述的方法,其中,所述方法还包括:
    所述第一终端通过目标资源选择模式传输待传输的第一TB,所述目标资源选择模式是第一资源选择模式中的一种或多种;
    或者,
    所述第一终端通过目标资源传输待传输的第一TB,所述目标资源是所述传输资源中的一种或多种;
    其中,所述第一资源选择模式包括以下一项或多项:资源推荐模式和自主资源选择模式,所述资源推荐模式用于所述第一终端获取所述第一资源,所述自主资源选择模式用于所述第一终端自主选择所述第二资源。
  14. 根据权利要求13所述的方法,其中,所述目标资源选择模式或者所述目标资源是协议约定的、控制节点配置或预配置的、控制节点动态指示的、或者终端间协商的。
  15. 根据权利要求13所述的方法,其中,所述目标资源选择模式或者所述目标资源是控制节点按照每个资源池配置的;
    或者,
    所述目标资源选择模式或者所述目标资源是控制节点按照每个终端动态指示的。
  16. 根据权利要求13所述的方法,其中,所述方法还包括以下一项或多项:
    所述第一终端根据所述第一终端的能力或状态,确定所述目标资源选择模式或者所述目标资源;
    所述第一终端根据信道忙碌比率CBR或者信道占用率CR,确定所述目标资源选择模式或者所述目标资源;
    所述第一终端根据所述待传输的第一TB的PDB或者优先级,确定所述目标资源选择模式或者所述目标资源。
  17. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述第一终端根据CBR或者CR,确定所述第一资源为所述第一终端期望使用的资源,或者确定所述第一资源为所述第一终端不期望使用的资源。
  18. 根据权利要求13所述的方法,其中,所述目标资源选择模式或者所述目标资源是所述第一终端动态选择的。
  19. 根据权利要求9所述的方法,其中,在所述传输资源的选择和所述第三资源的选择是独立触发的情况下,
    所述传输资源的选择是基于所述第一终端自主触发的,或者基于模式2自主资源选择的触发条件触发的;
    或者,
    所述传输资源的选择的触发时间和所述第三资源的选择的触发时间的时间间隔是协议约定的、控制节点配置或预配置的、终端协商的、或者预设规则确定的;
    或者,
    所述传输资源的选择的触发与所述第一信息和/或第二信息相关。
  20. 根据权利要求19所述的方法,其中,所述时间间隔是根据待传输的第一TB传输的PDB确定的。
  21. 根据权利要求19所述的方法,其中,所述传输资源选择的触发与所述第一信息和/或第二信息相关,包括以下一项或多项:
    在触发选择所述第三资源之后,如果所述第一终端在预设时间内没有发送或没有成功发送所述第一信息,则所述第一终端触发所述传输资源的选择;
    在触发选择所述第三资源之后,如果所述第一终端在预设时间内没有接收或没有成功解调所述第二信息,则所述第一终端触发所述传输资源的选择;
    在所述第一信息发送之后,如果所述第一终端在预设时间内没有接收或没有成功解调所述第二信息,则所述第一终端触发所述传输资源的选择;
    在接收到或成功接收到所述第二信息的情况下,所述第一终端触发所述传输资源的选择;
    在发送或成功发送所述第一信息的情况下,所述第一终端触发所述传输资源的选择。
  22. 根据权利要求10所述的方法,其中,在所述传输资源的选择和所述第三资源的选择是同时触发的情况下,所述传输资源的位置是根据预设规则确定的。
  23. 根据权利要求13所述的方法,其中,所述目标资源选择模式或目标资源的选择准则,包括以下一项或多项:
    所述目标资源选择模式优先使用自主资源选择模式,或者所述目标资源优先使用所述第二资源;
    所述目标资源选择模式优先使用资源推荐模式,或者所述目标资源优先使用所述第一资源;
    所述目标资源选择模式是所述第一终端自主选择的所述第一资源选择模 式中的一种或多种,或者,所述目标资源是所述第一终端自主选择的所述传输资源中的一种或多种资源中的部分或全部。
  24. 根据权利要求23所述的方法,其中,所述自主资源选择模式或者第二资源的选择准则,包括以下一项或多项:
    在所述第一终端在预设时间内没有获取第一资源的情况下,所述第一终端采用自主资源选择模式或者所述第二资源;
    在所述第一资源用完时,或者在所述第一资源用完后的一个或多个时间单元之后,所述第一终端采用自主资源选择模式或者所述第二资源。
  25. 根据权利要求24所述的方法,其中,所述第一终端在预设时间内没有获取第一资源的情况,包括以下一项或多项:
    在所述第三资源选择触发后,所述第一终端在预设时间内没有发送或没有成功发送所述第一信息;
    在所述第三资源选择触发后,或者所述第一信息发送之后,所述第一终端在预设时间内没有接收到或没有成功解调所述第二信息;
    在所述传输资源选择触发后,所述第一终端在预设时间内没有接收到或没有成功解调所述第二信息,或者,所述第一终端没有发送或者没有成功发送所述第一信息;
    所述第一终端在自主选择的第一个资源之前,所述第一终端没有接收到或者没有成功解调所述第二信息。
  26. 根据权利要求21或25所述的方法,其中,所述预设时间与待传输第一TB的PDB相关;
    或者,
    所述预设时间是协议约定的、控制节点配置或预配置的的、控制节点动态指示的、或者终端间协商的。
  27. 根据权利要求13所述的方法,其中,
    所述第一资源选择模式包括:资源推荐模式和自主资源选择模式,所述第一终端优先使用推荐资源选择模式;
    或者,
    所述传输资源包括:第一资源和第二资源中的全部或部分资源,所述第 一终端优先使用所述第一资源。
  28. 根据权利要求13所述的方法,其中,
    如果所述第一终端选择资源推荐模式或自主资源选择模式,则所述第一终端保持使用资源推荐模式或自主资源选择模式;
    和/或,
    如果所述第一终端选择资源推荐模式或自主资源选择模式,则所述第一终端保持使用自主资源选择模式或资源推荐模式选择的资源传输第二TB。
  29. 根据权利要求23所述的方法,其中,所述目标资源是所述第一终端自主选择的所述传输资源中的一种或多种资源中的部分或全部的情况下,所述目标资源满足以下一项或多项:
    所述目标资源的个数小于或等于待传输的第一TB的最大传输次数,所述第一资源的个数,所述第二资源的个数中的一项或多项;
    所述第一终端不能丢弃已经预留的资源;
    所述目标资源满足预设限制条件;
    其中,所述预设限制条件包括以下一项或多项:
    对于混合自动重传请求HARQ反馈的待传输的TB或者对于配置了PSFCH的资源池,任意两个目标资源间的距离满足HARQ往返时延RTT要求;
    任意两个目标资源间的时间间隔小于预设值。
  30. 根据权利要求29所述的方法,其中,所述预设限制条件不适用于以下至少一种情况:
    所述第一资源和所述第二资源之间;
    所述第一资源之间;
    所述第一信息指示的第一个所述第一资源和在所述第一个所述第一资源之前的第二资源之间;
    所述第一信息指示的最后一个所述第一资源和在所述最后一个第一资源之后的第二资源之间。
  31. 根据权利要求29所述的方法,其中,所述方法还包括:
    所述第一终端根据所述预设限制条件重选所述第二资源。
  32. 根据权利要求1所述的方法,其中,所述方法还包括:
    所述第一终端对所述第一资源进行重新评价re-evaluation或先占pre-emption检测。
  33. 根据权利要求32所述的方法,其中,所述re-evaluation或pre-emption检测是协议约定的、控制节点配置或预配置的、控制节点动态指示的、或终端间协商的。
  34. 根据权利要求32所述的方法,其中,所述方法还包括:
    在所述第一终端对所述第一资源进行重新评价re-evaluation或先占pre-emption检测之后,所述第一终端执行以下一项或多项:
    丢弃干扰资源;
    重选所述第一资源;
    选择所述第二资源。
  35. 一种旁链路资源推荐的装置,应用于第一终端,包括:
    执行模块,用于执行第一操作,所述第一操作包括以下一项或多项:
    向第二终端发送第一信息,所述第一信息用于触发所述第二终端向所述第一终端推荐第一资源;
    从所述第二终端接收第二信息,所述第二信息包括第一资源的信息;
    选择传输资源,所述传输资源包括:第一资源和/或第二资源,所述第一资源是所述第二终端推荐的资源,所述第二资源是所述第一终端自主选择的资源。
  36. 一种终端,包括:处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序,所述程序被所述处理器执行时实现如权利要求1至34中任一项所述的方法的步骤。
  37. 一种可读存储介质,所述可读存储介质上存储程序或指令,所述程序或指令被处理器执行时实现如权利要求1至34中任一项所述的方法的步骤。
  38. 一种芯片,包括处理器和通信接口,其中,所述通信接口和所述处理器耦合,所述处理器用于运行程序或指令,实现如权利要求1至34中任一项所述的方法的步骤。
  39. 一种计算机程序产品,其中,所述程序产品被存储在存储介质中, 所述程序产品被至少一个处理器执行以实现如权利要求1至34中任一项所述的方法的步骤。
  40. 一种通信设备,被配置为执行如权利要求1至34中任一项所述的方法的步骤。
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